A supercharged internal combustion engine has a supercharger operable to selectively supply a mass of air from below through above atmospheric air pressure according to the operating requirements of the engine. The supercharger has a shuttle combined with a throttle valve that controls the mass of air directed to an air mass bypass opening and supplied to the internal combustion engine. The shuttle has rollers that ride on rails that allow the shuttle to move to open and close the air mass bypass opening in communication with a casing that directs a mass of atmospheric air and a bypass mass of air interfused with the mass of atmospheric air to an air mass inlet of the supercharger.

A torsional pulse dampener including a pulley rotationally coupled to a piston that is axially displaceable and adapted to give torsional compliance from an engine for at least one-half revolution of an angular differential displacement between the pulley and the piston.

A torsional pulse dampener including a pulley rotationally coupled to a piston that is axially displaceable and adapted to give torsional compliance from an engine for at least one-half revolution of an angular differential displacement between the pulley and the piston.

An eccentric movable vane pump includes a cylinder body, a first rotor, second rotors, and movable vanes of which the number is greater than or equal to 2. The first rotor is eccentrically disposed with the second rotors. One end of each of the movable vanes is rotatably connected to the first rotor, and the other ends of the movable vanes are rotatably connected to the second rotors. The first rotor is disposed on a main shaft. The cylinder body is provided with a fluid inlet and a fluid outlet respectively corresponding to an expansion area and a compression area of a space between adjacent movable vanes. The pump has a simple structure, high efficiency, low cost, multiple operation conditions, high stability, and a long service life, can operate in a high-speed/ultra-high speed range without being sealed by an elastic device, and has a small radial impact in operation.

A supercharger system is disclosed herein having a front end, a rear end, an inlet and an outlet, the system contained within a housing, wherein the supercharger system includes a rotor assembly, and a plurality of intake runners that comprise an interlaced cross-runner pattern, wherein the supercharger system comprises a front drive, front inlet configuration and an inverted orientation.

A supercharged internal combustion engine is drivably connected to a variable displacement supercharger operable to continuously supply varying amounts of an air mass to the engine in response to the varying power requirements of the engine. The variable displacement capability eliminates blowdown losses of fixed displacement superchargers and substantially reduces the need for throttling of the intake air. The device also presents an air-motoring mode that can recover a portion of the engine throttling losses as positive power returned to the engine crankshaft when the engine intake manifold is below atmospheric pressure.

A supercharged internal combustion engine is drivably connected to a variable displacement supercharger operable to continuously supply varying amounts of an air mass to the engine in response to the varying power requirements of the engine. The variable displacement capability eliminates blowdown losses of fixed displacement superchargers and substantially reduces the need for throttling of the intake air. The device also presents an air-motoring mode that can recover a portion of the engine throttling losses as positive power returned to the engine crankshaft when the engine intake manifold is below atmospheric pressure.